yuyin86的专栏

I have a user-mode Linux application running on a Cortex-A8 (a TI 8148 Davinci chip). I have a shared memory region that I'm using to communicate data back and forth between the ARM core and the TI

Currently i am working on a Cortex-A9 single-core chip(AML8726-m if you want to know more), and in the datasheet it's said there is a neon in it. But when i test the code here(http://hilbert-space.d

ARM Cortex-A8 Overview & IntroductionCortex-A8 FeaturesFeature Comparison: ARM 926, 1136 and Cortex-A8Architecture OverviewCortex-A8 ArchitectureCortex-A8 Neon ArchitectureThe Cortex-A8

Table of ContentsOptimizing Code for ARM Cortex-A8 with NEON SIMDThe right C programming style for NEON optimizationUsing ARM NEON instructionsVFP3 (Standard ARM floating

Oops, Linux crashesYou've just started kernel development and got something like that: Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = c0004000 [00000000] *pgd

本文介绍了arm-linux编译器针对ARM处理器NEON的内建Intrinsics指令的介绍，当-mfpu=neon编译选项使能时就可以在C/C++代码内使用ARM的SIMD指令了，包括加法、乘法、比较、移位、绝对值 、极大极小极值运算、保存和加载指令等。These built-in intrinsics for the ARM Advanced SIMD extension are a

OMAP4开发资源总结：一、TI OMAP4官网介绍：http://www.ti.com.cn/general/cn/docs/wtbu/wtbuproductcontent.tsp?templateId=6123&navigationId=12843&contentId=53243二、OMAPpedia.org，This site has information on v

参考文章：1、http://blog.sina.com.cn/s/blog_4ae178ba01013yax.html2、http://blog.youkuaiyun.com/conowen/article/details/72559203、【整理】SIMD、MMX、SSE、AVX、3D Now、NEONhttp://www.arm.com/zh/products/proc

因为需要在QNX Momentics中混合C语言和ARM汇编进行开发，于是初步了解了一下APCS。和大家分享一下我自己的学习过程，然后通过一个形象一点的类比讲述我自己的理解。刚开始的时候我是不知道有APCS这回事，所以第一次从C语言中调用ARM汇编函数的时候返回就出错了。也正因为出错才去网上查找资料，知道了有APCS这回事。简单来讲，APCS是ARM汇编中调用过程中的一种约定，过程